Clinical trials
Placebo - Control clinical trials
Below are recruiting placebo - control clinical trials, each written for real people, not researchers. We’re tracking 3,962 recruiting studies, each written for real people, not researchers, below.
Recruiting studies
- NCT04874012RecruitingPhase 2
Taurine supplement study for blood sugar, fats, and inflammation
This Phase 2 study tests whether taking taurine affects blood sugar control, cholesterol/fats, and inflammation in people with type 2 diabetes. It may help by improving these lab markers, which are linked to long-term health risks.
Porto Alegre, Rio Grande do SulAges 30–80 - NCT04877093RecruitingPhase 3
Low-dose clonidine for PTSD nightmares in veterans
This Phase 3 study tests whether low-dose clonidine can reduce PTSD symptoms and especially nightmares in U.S. veterans. You’d be screened for PTSD severity and current treatments, then asked to visit the clinic as scheduled to see if the treatment helps.
Wauwatosa, WisconsinAges 18 years+ - NCT04880707RecruitingPhase 2
Pain medication options for lower wisdom tooth removal
This study compares pain-medication approaches during and after removing at least one lower impacted wisdom tooth (a tooth that’s stuck). It may help find a safer or more effective way to control dental pain after surgery.
Newark, New JerseyAges 18 years+ - NCT04883255RecruitingEarly Phase 1
Study cannabis effects on brain function in adults with HIV
This early-phase study looks at how cannabis (and the body’s cannabinoid system) may affect thinking and brain-related measures in people with HIV. You may be asked to avoid cannabis and complete several brain and health assessments to see how these factors relate.
San Diego, CaliforniaAges 18–65 - NCT04886284RecruitingPhase 2
Cefazolin plus ertapenem for MSSA bloodstream infection
This Phase 2 study tests whether adding ertapenem to cefazolin can improve treatment of staphylococcus (“S. aureus”) bloodstream infection that is likely methicillin-susceptible (MSSA). It aims to start the right antibiotics quickly, before MRSA status is fully confirmed, using early testing and a treatment plan guided by infectious-disease specialists.
Calgary, AlbertaAges 18–100 - NCT04898283RecruitingPhase 3
Allergy shot study for grass and cypress pollen symptoms
This phase 3 trial tests a specific allergy treatment (an “immunotherapy” shot) for people whose symptoms are triggered by grass and cypress tree pollen. It aims to see if the treatment is safer and more effective at reducing allergy symptoms over time, especially for nose/eye symptoms and some people with asthma.
Valladolid, Castille and LeónAges 12–65 - NCT04899908RecruitingPhase 2
Brain radiation with or without gadolinium nanoparticles for brain metastases
This trial tests whether adding tiny gadolinium-containing nanoparticles to standard brain radiation can better control brain metastases from certain cancers. It is for people with tumors that have grown after immunotherapy, are from certain cancers (like melanoma, GI, or HER2+ breast), are cystic, are large, or have come back after prior radiation.
Boston, MassachusettsAges 18 years+ - NCT04901273Recruiting
PRP shot vs placebo for knee osteoarthritis in adults 65+
This trial compares an injection made from your own platelets (PRP) to a placebo shot to see if it helps knee osteoarthritis symptoms and function. It is designed for people over 65 with arthritis affecting only one knee.
BolognaAges 65 years+ - NCT04915183RecruitingPhase 2
Atorvastatin to help prevent cisplatin-related hearing loss
This Phase 2 trial tests whether a cholesterol medicine called atorvastatin can protect hearing in people with head and neck cancer receiving cisplatin plus radiation. If it works, it may reduce the chance or severity of treatment-related hearing damage.
Atlanta, GeorgiaAges 18–100 - NCT04917471Recruiting
Testing nitrate to improve red blood cell function in type 2 diabetes
This study looks at whether taking nitrate can improve how red blood cells work in people with type 2 diabetes. You may be asked to follow a specific plan and avoid certain foods or medicines that could affect the results.
StockholmAges 18 years+ - NCT04917302RecruitingPhase 2
NMDA and anti-inflammatory add-on for treatment-resistant schizophrenia
This trial tests whether combining an NMDA “signal-supporting” treatment with an anti-inflammatory medicine can reduce symptoms in people with schizophrenia who don’t respond well to usual antipsychotic drugs. If you’ve tried at least two antipsychotics and you’re still symptomatic, this study may be worth screening for.
TaichungAges 18–65 - NCT04921527RecruitingPhase 3
Chiauranib with weekly paclitaxel for tough ovarian cancer
This Phase 3 trial tests whether chiauranib combined with weekly paclitaxel can shrink recurrent ovarian, fallopian tube, or primary peritoneal cancer that did not respond to platinum chemotherapy. It is designed for people who have limited treatment options after platinum-resistant or platinum-refractory disease.
Shanghai, ChinaAges 18–70 - NCT04922333RecruitingPhase 3
Bisphosphonate to prevent bone loss after sleeve weight-loss surgery
This study looks at whether a bisphosphonate medicine can reduce bone loss after sleeve gastrectomy (a type of weight-loss surgery). If you had the surgery, it may help protect your bones while you recover and lose weight.
Winston-Salem, North CarolinaAges 30 years+ - NCT04924270RecruitingPhase 2
Capsule stool transfer for newly diagnosed inflammatory bowel or joint disease
This Phase 2 study tests whether taking capsule stool (FMT) is safe and can help people who are newly diagnosed and haven’t started the usual medicines yet. Participants will also start the standard first-line treatment for their condition, and the study will compare safety and outcomes.
OdenseAges 18–75 - NCT04925414RecruitingPhase 4
Testing high-flow oxygen for migraine in the emergency room
This trial looks at whether breathing high-flow oxygen in the emergency department can help relieve migraine-like headaches. You may qualify if you are 18+ and are admitted to the ER for a migraine that fits standard diagnostic rules.
NiceAges 18 years+ - NCT04932577RecruitingPhase 2/Phase 3
Fecal transplant to treat complications of liver cirrhosis
This trial studies whether transferring healthy gut bacteria (from a donor sample) can improve outcomes for people with liver cirrhosis who have worsening complications. It may help by changing the gut microbiome, which can influence inflammation and liver health.
AarhusAges 18–75 - NCT04601038RecruitingPhase 2
Testing a stress-blocking drug for early Alzheimer's risk
This study tests a new medication, CORT108297, that may help protect the brain from the harmful effects of stress in people at risk for Alzheimer's disease. It is looking for adults age 55 and older who either have mild memory problems or are healthy but have a family history, APOE4 gene, or memory concerns.
Baltimore, MarylandAges 55 years+ - NCT05798923RecruitingPhase 2
LAM-001 for lung scarring with high blood pressure
This trial tests a new medication called LAM-001 for people with high blood pressure in the lungs caused by lung scarring. It aims to see if it can improve symptoms and help you feel better.
Tucson, ArizonaAges 18–80 - NCT07306182RecruitingPhase 2
Testing SGC001 for anterior wall heart attack
This study tests an investigational drug called SGC001 for people having a heart attack affecting the front wall of the heart. The goal is to see if adding this drug to the standard artery-opening procedure helps improve outcomes.
Shanghai, Shanghai MunicipalityAges 18–79 - NCT07699380RecruitingPhase 2
Metabolic study to improve insulin sensitivity in type 1 diabetes
This study tests a new medication to see if it can improve how your body responds to insulin and boost your cells' energy (mitochondrial function). It is for adults with type 1 diabetes who are already on insulin and have good overall health.
Seattle, WashingtonAges 18–69 - NCT07015905RecruitingPhase 3
Study of REGN7508 vs. standard blood thinners after knee replacement
This trial compares a new blood thinner called REGN7508 to two standard blood thinners (apixaban and enoxaparin) to prevent blood clots after total knee replacement surgery. The goal is to see which is safer and more effective.
Sheffield, AlabamaAges 18 years+ - NCT07266831RecruitingPhase 2/Phase 3
Study of islatravir and ulonivirine for new HIV patients
This trial tests two new HIV medications, islatravir and ulonivirine, in people who have never taken HIV treatment before. It aims to see if this combination can safely control the virus.
Los Angeles, CaliforniaAges 18 years+ - NCT07634484RecruitingPhase 4
Pemafibrate for high cholesterol not controlled by statins
This study tests whether pemafibrate, a new medication, can lower cholesterol better when added to statin treatment in patients whose cholesterol remains high despite taking statins regularly. The goal is to see if this combination reduces heart disease risk.
HokkaidoAges 18 years+ - NCT07531251RecruitingPhase 4
Barth Syndrome Heart Treatment Study
This trial tests a medicine called elamipretide (4TAZ) in boys with Barth Syndrome, a genetic condition affecting the heart and muscles. The goal is to see if this medicine can help improve heart function and how the body uses energy.
Needham, MassachusettsAges 5–55
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Common questions
- Are there clinical trials for placebo - control?
- Yes. Clin2 currently lists 3,962 recruiting placebo - control studies from the U.S. registry, each rewritten for real people, not researchers, so you can see what it’s testing and who it’s for.
- How do I know if I qualify for a placebo - control trial?
- Each study lists its eligibility criteria — rules about age, diagnosis, and prior treatments. On every Clin2 trial page we explain these in words written for real people and offer a short, optional pre-screen for a fit read. The study team makes the final decision.
- Does it cost anything to join a placebo - control trial?
- Using Clin2 is always free. Many trials cover the cost of the study treatment and related visits; some reimburse travel. The study team explains exactly what’s covered before you decide.
Related conditions
Clin2 helps you find and understand clinical trials and does not provide medical advice. Study data comes from ClinicalTrials.gov. Talk with your doctor about whether a specific trial is right for you.